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<?php
/**
* Class MicrosoftTranslator to translate texts
* @author sweetheatmn
* @version 1.1.0
* Changelog: 1.1.0: added method to translate via POST Request + Translate posts more than 10000 chars count
*/
class MicrosoftTranslator {
public $ch;
public $accessToken;
private $endpoint = "https://api.cognitive.microsofttranslator.com";
private $key;
private $region;
/**
*
* Constructor to reciveve curl handler
*
* @param CURL $ch
* curl handler
*/
function __construct(&$ch) {
// Set curl handler
$this->ch = $ch;
// Don't display headers for json decode
curl_setopt ( $this->ch, CURLOPT_HEADER, 0 );
}
/**
*
* Get an authorization Token to use for translation
*
* @param text $clientID
* @param text $clientSecret
*
* @return string
*
*/
function getToken($clientId , $wp_automatic_mt_region) {
$this->key = $clientId;
$this->region = $wp_automatic_mt_region;
}
/**
*
* Translate text using Microsoft translator with POST Method
*
* @param string $sourceText
* Source Text
* @param string $fromLanguage
* From Language
* @param string $toLanguage
* To Lanuguage
*
* @return text
*
*/
function translateTextArr($sourceText, $fromLanguage, $toLanguage) {
return $this->translateText ( $sourceText, $fromLanguage, $toLanguage );
$inputStrArr = array (
$sourceText
);
// Post translate request
$curlUrl = "http://api.microsofttranslator.com/V2/Http.svc/TranslateArray";
$requestXml = '<TranslateArrayRequest><AppId/>' . '<From>' . $fromLanguage . '</From>' . '<Options>' . '<Category xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" />' . '<ContentType xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2">text/plain</ContentType>' . '<ReservedFlags xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" />' . '<State xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" />' . '<Uri xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" />' . '<User xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" />' . '</Options>' . '<Texts>' . '<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">' . htmlspecialchars ( $sourceText ) . '</string>' . '</Texts>' . '<To>' . $toLanguage . '</To>' . '</TranslateArrayRequest>';
curl_setopt ( $this->ch, CURLOPT_URL, $curlUrl );
curl_setopt ( $this->ch, CURLOPT_POST, true );
curl_setopt ( $this->ch, CURLOPT_POSTFIELDS, $requestXml );
curl_setopt ( $this->ch, CURLOPT_HTTPHEADER, array (
'Authorization: Bearer ' . $this->accessToken,
"Content-Type: text/xml"
) );
$exec = curl_exec ( $this->ch );
$x = curl_error ( $this->ch );
// Empty reply check
if (trim ( $exec ) == '') {
throw new Exception ( 'Empty translator token request reply with possible curl error ' . $x );
}
// Exception check
if (stristr ( $exec, 'Argument Exception' )) {
// Read exception
preg_match ( '{Message\:(.*?)<}s', $exec, $matchs );
$txtException = $matchs [1];
throw new Exception ( 'Text Translate Argument Exception found ' . $txtException );
}
// TranslateApiException
if (stristr ( $exec, 'TranslateApiException' )) {
// Read exception
preg_match ( '{Message\:(.*?)<}s', $exec, $matchs );
$txtException = $matchs [1];
throw new Exception ( 'Text Translate Method Exception found ' . $txtException );
}
if (! stristr ( $exec, 'ArrayOfTranslateArrayResponse' )) {
echo $exec;
throw new Exception ( 'Text Translate Method Not valid reply :' . substr ( $exec, 0, 15 ) );
}
// Load strings
$xmlObject = simplexml_load_string ( $exec );
$finalTranslation = '';
foreach ( $xmlObject as $translatedText ) {
$finalTranslation .= $translatedText->TranslatedText;
}
return $finalTranslation;
}
/**
*
* Translate text using Microsoft translator with GET Method
*
* @param string $sourceText
* Source Text
* @param string $fromLanguage
* From Language
* @param string $toLanguage
* To Lanuguage
*
* @return text
*
*/
function translateText($sourceText, $fromLanguage, $toLanguage) {
// Post translate request
$curlUrl = "http://api.microsofttranslator.com/v2/Http.svc/Translate?text=" . urlencode ( $sourceText ) . "&from=$fromLanguage&to=$toLanguage";
$curlUrl = $this->endpoint . "/translate?api-version=3.0&from=$fromLanguage&to=$toLanguage";
// $curlUrl = "https://api.cognitive.microsofttranslator.com/translate?api-version=3.0&to=es";
$requestBody = array (
array (
'Text' => $sourceText
)
);
$curlpost = json_encode ( $requestBody );
curl_setopt ( $this->ch, CURLOPT_URL, $curlUrl );
curl_setopt ( $this->ch, CURLOPT_POST, true );
curl_setopt ( $this->ch, CURLOPT_POSTFIELDS, $curlpost );
$headers [] = "Ocp-Apim-Subscription-Key: " . $this->key;
//region
if(trim($this->region) != ''){
$headers [] = "Ocp-Apim-Subscription-Region: " . trim($this->region) ;
}
$headers [] = "Content-Type: application/json";
curl_setopt ( $this->ch, CURLOPT_HTTPHEADER, $headers );
$x = 'error';
$exec = curl_exec ( $this->ch );
$x = curl_error ( $this->ch );
// Empty reply check
if (trim ( $exec ) == '') {
throw new Exception ( 'Empty translator token request reply with possible curl error ' . $x );
}
// Exception check
if (stristr ( $exec, '"error":' )) {
// Read exception
preg_match ( '{"message":"(.*?)"}s', $exec, $matchs );
$txtException = $matchs [1];
throw new Exception ( 'Translator text returned an error: ' . $txtException );
}
// TranslateApiException
if (stristr ( $exec, 'TranslateApiException' )) {
// Read exception
preg_match ( '{Message\:(.*?)<}s', $exec, $matchs );
$txtException = $matchs [1];
throw new Exception ( 'Text Translate Method Exception found ' . $txtException );
}
// Load strings
$json = json_decode ( $exec );
if (! isset ( $json [0] ) || ! isset ( $json [0]->translations )) {
throw new Exception ( 'Returned Json does not contain the translations ' . $exec );
}
$finalTranslation = $json [0]->translations [0]->text;
return $finalTranslation;
}
/**
* Translate Wrap translates 5000 chars by 5000 chars to skip translator limit
*
* @param unknown $sourceText
* @param unknown $fromLanguage
* @param unknown $toLanguage
*/
function translateWrap($sourceText, $fromLanguage, $toLanguage) {
$translated = '';
// if just one patch
$charLimit = 4900;
$charCount = $this->chars_count ( $sourceText );
if ($charCount < $charLimit) {
return $this->translateTextArr ( $sourceText, $fromLanguage, $toLanguage );
} else {
// multiple patches
$patchsCount = floor ( $charCount / $charLimit ) + 1;
for($i = 0; $i < $patchsCount; $i ++) {
$patchStartIndex = $i * $charLimit;
if (function_exists ( 'mb_substr' )) {
$currentPath = mb_substr ( $sourceText, $patchStartIndex, $charLimit );
} else {
$currentPath = mb_substr ( $sourceText, $patchStartIndex, $charLimit );
}
$translated .= $this->translateTextArr ( $currentPath, $fromLanguage, $toLanguage );
}
return $translated;
}
}
/**
* Count chars on text using mb_ module and if not exists it count it using strlen
*
* @param unknown $text
*/
function chars_count(&$text) {
if (function_exists ( 'mb_strlen' )) {
return mb_strlen ( $text );
} else {
return strlen ( $text );
}
}
/**
* Gets a text substr using mb_string module if exists and if not use substr function
*
* @param unknown $text
* @param unknown $start
* @param unknown $end
*/
function text_substr(&$text, $start, $length) {
if (function_exists ( 'mb_substr' )) {
return mb_substr ( $text, $start, $length );
} else {
return substr ( $text, $start, $length );
}
}
}